30203211111 has 16 divisors (see below), whose sum is σ = 42239345664. Its totient is φ = 19174433184.

The previous prime is 30203211089. The next prime is 30203211121. The reversal of 30203211111 is 11111230203.

It is a happy number.

It is not a de Polignac number, because 30203211111 - 2¹³ = 30203202919 is a prime.

It is a super-2 number, since 2×30203211111² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30203211121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2889475 + ... + 2899908.

It is an arithmetic number, because the mean of its divisors is an integer number (2639959104).

Almost surely, 2^30203211111 is an apocalyptic number.

30203211111 is a deficient number, since it is larger than the sum of its proper divisors (12036134553).

30203211111 is a wasteful number, since it uses less digits than its factorization.

30203211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789470.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 30203211111 its reverse (11111230203), we get a palindrome (41314441314).

The spelling of 30203211111 in words is "thirty billion, two hundred three million, two hundred eleven thousand, one hundred eleven".